"Updated Lightweight Version" with Keyring Lanyard.
Small, and handy Cartomizer Punch. Additional hole is provided on the side for attachment to a keyring, or lanyard. Punch body is about the diameter of a US Nickle (13/16" dia.). Thumbscrew punch uses a wingnut for ease in turning. Please measure, and mark a previously punched cartomizer in order to locate hole location properly. Since carto tanks vary widely, hole locations may need to be adjusted to personal preference. Please begin with a very small punched hole, and enlarge if necessary depending on liquid viscosity. When not in use, snugly tighten thumbscrew into punch body to prevent screw from backing out, especially whan carried in pocket.